CN1841882B - Magnet yoke for rotary motor and method for manufacturing same - Google Patents
Magnet yoke for rotary motor and method for manufacturing same Download PDFInfo
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- CN1841882B CN1841882B CN2006100710059A CN200610071005A CN1841882B CN 1841882 B CN1841882 B CN 1841882B CN 2006100710059 A CN2006100710059 A CN 2006100710059A CN 200610071005 A CN200610071005 A CN 200610071005A CN 1841882 B CN1841882 B CN 1841882B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49009—Dynamoelectric machine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/53143—Motor or generator
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- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Motor Or Generator Frames (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A yoke 1 and method of manufacturing a yoke are disclosed. A cutout steel plate 6 is prepared and rolled into a cylindrical shape to allow protrusions 7 to be inserted to concave portions 8, after which punch caulking P is carried out on near-wall areas of respective sidewalls of one of each protrusion and each concave portion. This causes localized expanding portions 10, 10 A, formed on the relevant sidewalls, to be filled in associated indents 9, 9 A formed on the other one of each protrusion and each concave portion, mechanically jointing the protrusions and the concave portions to form the yoke 1.
Description
The cross reference of related application
The application is involved in the Japanese patent application No.2005-098329 that submitted on March 30th, 2005, and the content of the document is hereby incorporated by.
Technical field
The present invention relates to be used in the yoke in electric rotating machine such as the actuating motor, particularly relate to a kind of yoke and the method for making this yoke.
Background technology
In correlation technique, described in Japan Patent provisional application No.64-60247, attempted to provide a kind of manufacturing to be used in the method for the yoke in actuating motor etc. so far.In the correlation technique shown in Fig. 6; The steel plate 100 that is cut into rectangular shape is rolled into cylindrical configuration by volume. and roll in the process at this volume, manufacturing approach is carried out like this, promptly; Make recess 120 coupling engagements on convexity 110 and the other end that is formed at steel plate 100 on the end be formed at steel plate 100; Then, each middle section of protruding 110 is pressed calking (press caulk) and forms dilation, through this dilation; Convexity 110 connects with recess 120, thereby makes two ends 100a, the 100b mechanical connection of steel plate 100.
In this manufacturing approach; When steel plate 100 volumes are rolled into cylindrical configuration; The import of each recess 120 forms with the size that is equal to or slightly less than each width of protruding 110, so that convexity 110 is mated engagement with recess 120 along the circumferential direction shown in arrow among Fig. 7 A each other.And, shown in Fig. 7 B, keep between the interior week of each periphery of protruding 110 and each recess 120, forming gap 130 under the situation of coupling engagement each other with recess 120 protruding 110.Subsequently, shown in Fig. 7 C, each middle section of protruding 110 is suppressed calking at PW place, and each neighboring area of protruding 110 expansion, with this gap 130 of filling, thereby makes the two ends 100a and the 100b mechanical connection of steel plate 100.
Yet this related art method runs into following listed several problems.
A) under the state that convexity 110 keeps meshing with recess 120 couplings, gap 130 forms around each convexity 110 basically, and therefore, each neighboring area of protruding 110 is difficult to even expansion when punching press calking (punckcaulking).This possibility that causes between each convexity 110 and each recess 120, leaving gap 130 increases, and therefore produces bubble-tight problem, and has reduced the mechanical connection intensity between each convexity 110 and each recess 120.
B) if the differential expansion that forms through punching press calking part towards each far-end displacement of protruding 110; Just the Where topical dilation is towards when each far-end of protruding 110 increases with bigger degree; Yoke is applied in power; Thereby cause convexity 110 and recess 120 to draw back each other, thereby the internal diameter precision of yoke and circularity precision are reduced.
Summary of the invention
The present invention has considered the problems referred to above, the purpose of this invention is to provide a kind of yoke, and this yoke has the mechanical connection intensity of enhancing, and has very high-precision internal diameter and circularity; The present invention also aims to provide a kind of method of making this yoke.
To achieve these goals, one aspect of the present invention provides a kind of yoke of electric rotating machine.This yoke comprises: cutting steel plate, and this cutting steel plate forms rectangle, and the one of which end is formed with a plurality of recesses, and the other end is formed with a plurality of convexities, and this cutting steel plate volume rolls into cylindrical shape, and wherein, convexity is inserted in the recess respectively, so that the two ends of mechanical connection steel plate.Each recess has the sidewall of opening facing to the diapire of each protruding far-end and the axially spaced-apart that stretches out from the diapire two ends.Each convexity has sidewall, and its width is equal to or slightly less than the entrance width of each recess basically.Sidewall one of in each recess and each convexity has indenture, and when carrying out press process in each recess and each convexity another, this indenture is partially filled by the differential expansion that forms on another the sidewall in each recess and each convexity.
Through this structure, have the sidewall that axially spaced-apart is opened one of in each protruding and each recess, the nearly wall part of this sidewall expands along the axial direction of yoke, to be assembled in the relevant indenture that is formed in each protruding and each recess another.Therefore, the two ends of steel plate interconnect, and not on the two ends of steel plate the application of force make these two parts draw back each other along the circumferential direction of yoke.Therefore, carry out the punching press calking on one of in each protruding and each recess so that the differential expansion part when the axial direction of yoke stretches, with can the internal diameter and the circularity of yoke not being had a negative impact, thereby has increased the internal diameter of yoke and the precision of circularity.
And; The punching press calking is in isolated sidewall areas, to carry out in each convexity and each recess; The position of carrying out the punching press calking is adjacent to formed relevant indenture in each protruding and each recess another, thereby can form this nearly wall part with even mode.This causes this nearly wall part seamlessly to insert relevant indenture, thereby the two ends of steel plate are connected with the mechanical strength that increases.
Preferably; The sidewall of each recess can have indenture; This indenture and the axial direction of yoke are formed in the face of being equipped with the location of protruding sidewall with aliging, and each protruding sidewall has the differential expansion part, in the relevant indenture of the partially filled sidewall to each recess of this differential expansion.
This makes indenture in the cutting operation process of steel plate, to be formed on the sidewall of each recess, thereby has reduced the additional work for preparing this indenture.And, because therefore the formation of indenture on the sidewall of each recess and yoke axial alignment cause each protruding differential expansion part to stretch along the axial direction of yoke.This causes there is not the power along the circumferential direction effect of yoke.Just, can the internal diameter and the soundness of yoke do not had a negative impact, therefore, this yoke forms the cylindrical shape with more high-precision internal diameter and circularity.
Preferably; Each protruding sidewall can have indenture; This indenture is formed at the location in the face of the sidewall of each recess with the axial direction of yoke with aliging, and the sidewall of each recess has the differential expansion part, and this differential expansion is partially filled to the indenture of each protruding sidewall.
This makes indenture in the cutting operation process of steel plate, to be formed on each protruding sidewall, thereby has avoided preparing the additional work of this indenture.And, because the formation of indenture on each protruding sidewall and yoke axial alignment, so the differential expansion of each recess part can form along the axial direction of yoke.This causes there is not the power along the circumferential direction effect of yoke.Just, can the internal diameter and the circularity of yoke not had a negative impact, therefore, this yoke forms the cylindrical shape with more high-precision internal diameter and circularity.
Preferably, the diapire of each protruding far-end and each recess can form along the axial direction of yoke as the crow flies, and each protruding height almost is equal to each other with each concave depth.Under and the situation that each recess matches protruding at each, the diapire of each protruding far-end and each recess along the circumferential direction of yoke each other against engagement.
Through this structure; Can under the state of engagement, carry out press process each other along the circumferential direction of yoke at the diapire of each protruding far-end and each recess; So that calking is carried out in the near wall region territory to one of in each protruding and each recess, thereby the differential expansion part is only stretched along the axial direction of yoke.Therefore, press process can not cause between the diapire of each protruding far-end and each recess, forming the gap.This can increase the internal diameter of yoke and the precision of circularity.
Another aspect of the present invention provides a kind of method of making the yoke of electric rotating machine; Wherein, an end of a rectangle cutting steel plate is formed with a plurality of recesses, and the other end is formed with a plurality of convexities; This cutting steel plate has the cylindricality volume and rolls shape; Wherein, convexity is inserted in the recess respectively, so that the two ends mechanical connection of steel plate.This method comprises: a steel plate is cut to form cutting steel plate; This cutting steel plate volume is rolled into cylindrical shape, so that each protruding insertion in each recess; And roll step through volume, make each protruding and each recess mechanical connection.
In cutting step, each protruding axial width forms the entrance width that is equal to or slightly less than each recess basically, and the sidewall one of in each protruding and each recess is formed with the indenture that inwardly concaves.Roll in the step at volume, the cutting steel plate volume is rolled into each protruding far-end along the import of circumferential direction in the face of each recess, then, be equipped with protruding along each recess of circumferential direction insertion.In Connection Step, calking is suppressed in the near wall region territory of the sidewall one of in each protruding and each recess, the position of suppressing calking be formed at each protruding and each recess in another sidewall on relevant indenture into face-to-face relationship.
Through this manufacturing approach; When roll of steel plate is rolled into cylindrical shape; Need not make the two ends of steel plate misplace mutually along the radial direction of yoke; And can keep the situation last volume rolled steel plate of relation face-to-face in the import of each protruding far-end and each recess, the condition last volume rolled steel plate that just can aim in same radial position in the import of each protruding far-end and each recess.This makes the displacement of rebounding that produces same amount at the two ends that are equipped with protruding and each recess, thereby has eliminated the internal diameter of yoke and the factor of circularity variation of making.
And; Near wall region territory one of in each protruding and each recess is pressed calking; Forming the differential expansion part on the sidewall one of in each protruding and each recess, thereby make this differential expansion part and the indenture that is formed in each protruding and each recess another seamlessly cooperates.Just, because the differential expansion part is expanding, therefore between the diapire of each protruding far-end and each recess, can not produce the gap on the direction of relevant indenture, thereby between each convexity and each recess, enough mechanical connection intensity is provided.
Preferably, the sidewall of each recess can be respectively be formed with indenture in the location in the face of each protruding sidewall, and each protruding sidewall has the differential expansion part, in the indenture of the partially filled sidewall to each recess of this differential expansion.
This causes indenture in the cutting operation process of steel plate, to be formed on the sidewall of each recess, thereby makes the additional work of this indenture of preparation minimized.And, because therefore the formation of indenture on the sidewall of each recess and yoke axial alignment cause each protruding differential expansion part can be formed on the axial direction of yoke.This causes there is not the power along the circumferential direction effect of yoke.Just, can the internal diameter and the circularity of yoke not had a negative impact, therefore, this yoke forms the cylindrical shape with more high-precision internal diameter and circularity.
Preferably; Each protruding sidewall can be formed with indenture; This indenture is formed at the location in the face of the sidewall of each recess with the axial direction of yoke with aliging, and the sidewall of each recess has the differential expansion part, and this differential expansion is partially filled to the indenture of each protruding sidewall.
This makes indenture in the cutting operation process of steel plate, to be formed on each protruding sidewall, thereby makes that the additional work of this indenture of preparation is minimized.And, because the formation of indenture on each protruding sidewall and yoke axial alignment, so the differential expansion of each recess part can form along the axial direction of yoke.This causes there is not the power along the circumferential direction effect of yoke.Just, can the internal diameter and the circularity of yoke not had a negative impact, therefore, this yoke forms the cylindrical shape with more high-precision internal diameter and circularity.
Preferably, this is connected under such situation and carries out, and promptly the diapire of each protruding far-end and each recess made progress against engagement in week, and the two ends of cutting steel plate made progress each other against engagement in week.
Connect through press process and to make differential expansion part only stretch along the axial direction of yoke.Like this, in the press process process, between the diapire of each protruding far-end and each recess, can not produce the gap, and not have masterpiece to be used in to make on the direction that the two ends of yoke draw back each other.Therefore, when the execution volume rolls step, between the two ends of cutting steel plate, can not form the gap.Thereby yoke can be made for has very high-precision internal diameter and circularity.
Preferably, can carry out the punching press calking through the drift that utilizes shape to be similar to each indenture shape and carry out this connection.
Through using this drift to carry out the calking step, the shape of formed differential expansion part conforms to the shape approximation of relevant indenture.Therefore, the differential expansion part can cooperate with relevant indenture respectively, thereby increases the mechanical connection intensity between each convexity and each recess.
Description of drawings
Fig. 1 is the perspective view of yoke according to an embodiment of the invention;
Fig. 2 forms the plane graph of the cutting steel plate of the yoke shown in Fig. 1 for manufacturing method according to the invention;
Fig. 3 A to 3C is the view of the basic order of the manufacturing step of the yoke shown in expression formation Fig. 1;
Fig. 4 be comprise the yoke shown in Fig. 1 starter partly cut open end view;
Fig. 5 A to 5C is used to carry out the view of basic order of the manufacturing step of manufacturing approach according to another embodiment of the present invention for expression;
Fig. 6 is expression forms the cutting steel plate of yoke according to relevant prior art practice a plane graph; And
Fig. 7 A to 7C is the view of basic order of the manufacturing step of the relevant engineering practice of expression.
Embodiment
Realize that best mode of the present invention will introduce in detail with reference to embodiment described below.
Instance 1
Fig. 1 is the perspective view of yoke 1, and Fig. 2 is the plane graph that forms the cutting steel plate 6 of yoke 1.
The yoke 1 of first embodiment can be used for various devices, for example as shown in Figure 4 the actuating motor that is used to pilot engine 2 instance of electric rotating machine of the present invention (representative according to).
As shown in Figure 4, actuating motor 2 comprises known direct current machine, and this direct current machine comprises: magnetic field, this magnetic field week comprise a plurality of permanent magnets 3 that are fixedly mounted on the yoke 1 within it, so that form magnetic circuit; And armature 4, this armature 4 rotatably is arranged in inside, magnetic field.The revolving force that on armature 4, produces is passed to the ring gear (not shown) of engine by pinion 4.And, omitted here the detailed structure of actuating motor 2 and the explanation of operation.
With reference to figure 1; As shown in Figure 1; Yoke 1 is that the cutting steel plate 6 of about 2mm is processed by thickness; This steel plate 6 volumes roll into cylindrical shape, when forming cylindrical shape, and the recess 8 machinery coupling engagements of preformed axially spaced-apart on a plurality of convexities 7 at preformed axially spaced-apart on the end 6a of cutting steel plate 6 and a plurality of other end 6b at cutting steel plate 6.
To introduce the manufacturing approach of yoke 1 below.
The manufacturing approach of yoke 1 realizes with following steps:
A) steel plate 6 is cut into the step of rectangle;
B) cutting steel plate 6 is rolled up the step that rolls into cylindrical shape; And
C) make volume roll into the step of two ends mechanical connection of the steel plate 6 of cylindrical shape.
In cutting step, banded yoke raw material (steel plate) are cut into the piece that has given length respectively, thereby prepare rectangle cutting steel plate 6 as shown in Figure 2.In this cutting process, an end 6a of cutting steel plate 6 is formed with the convexity 7 of a plurality of axially spaced-aparts, and other end 6b is formed with the recess 8 of a plurality of axially spaced-aparts.
Protruding 7 form such structure, i.e. each protruding 7 end 6a protrusion from rectangular steel plates 6.Recess 8 is recessed into rectangular shape respectively at the other end 6b place of steel plate 6.The convexity 7 of similar number and recess 8 are formed in the zone that equi-spaced apart opens, and are in consistent position with respect to the axis of yoke 1.And the two side of each recess 8 has the indenture 9 of axis to form in the face of relation along yoke 1 respectively, and each indenture caves inward with the substantial arc shape.
In the zone except that indenture 9, each recess 8 has and each protruding 7 identical shape, and just, the shape with the remainder after each convexities 7 of shape and excision of each recess of two sides that extend with rectilinear form is identical.In other words, the other end 6b of cutting steel plate 6 has the structure that is formed by the remainder after the excision protruding 7, and it comprises recess 8, and the contour shape of this recess 8 shape with convexity 7 respectively is identical.Therefore; As shown in Figure 2; Size (degree of depth h2 of recess 8) between the diapire 8a of the edge of the other end 6b that the size (protruding 7 height h1) between the far-end of the edge of an end 6a of steel plate 6 and protruding 7 equals at steel plate 6 basically and recess 8, and protruding 7 width d1 (short side dimension) equals the width d2 (width when not comprising indenture 9) of recess 8 basically.
Roll in the step at volume, cutting steel plate 6 volumes roll into cylindrical shape, make convexity 7 and associated recess 8 mate engagement.Roll in the step at this volume, steel plate 6 volumes are rolled to such position, in this position; Protruding 7 the far-end 7a and the import 8b of recess 8 face with each other along the circumferential direction (shown in arrow A among Fig. 3 A) of steel plate 6; Subsequently, further roll up and roll, so that protruding 7 are assembled in the recess 8 along circumferential direction.At this moment, because protruding 7 height h1 is equal to each other with the degree of depth h2 of recess 8 basically, therefore the diapire 8a of the far-end 7a of convexity 7 and recess 8 is against engagement, and can not produce the gap.And shown in Fig. 3 B, because the width d1 of the width d2 of recess 8 except that indenture 9 and convexity 7 is equal to each other basically, therefore, protruding 7 two exterior lateral area have the gap that produces by being formed at the indenture 9 on recess 8 dual-sides respectively.
In Connection Step, each two side areas of protruding 7 is all utilized the drift (not shown) and is carried out press process (hereinafter being called punching press-calking compacting P).This feasible differential expansion zone of protruding 7 is stretched over and fits into relevant indenture 9, makes convexity 7 and recess 8 by mechanical connection, shown in Fig. 3 C.
And, in this Connection Step, can preferably use the very similar drift of its most advanced and sophisticated shape with each indenture 9.For example, when the both sides of recess 8 all are formed with circular arc indenture 9, can use peripheral shape to bend to the drift of the circular arc consistent with relevant indenture 9.This makes and cooperates with more uniform mode and relevant indenture 9 through the differential expansion zone that punching press-calking compacting P forms, thereby has improved the mechanical connection intensity between convexity 7 and recess 8.
(advantageous effects of first embodiment)
Through the method for above-mentioned manufacturing yoke 1, cutting steel plate 6 volumes are being rolled in the process of cylindrical shape, the two ends of steel plate 6 do not need radially to misplace; And cutting steel plate 6 can be rolled up like this and roll, that is, make the far-end 7a of convexity 7 and the import 8b of recess 8 face with each other along circumferential direction (just being on the identical radius).In this case, can be so that the rebound amount that steel plate 6 two ends produce be equal to each other, thus can suppress to damage the radius size precision and the circularity factors of accuracy of yoke 1.
And, the near wall region territory place of punching press-calking compacting P on protruding 7 both sides, with indenture 9 into face-to-face relationship the carrying out of recess 8.Therefore, protruding 7 owing to press process is formed with the differential expansion part, this differential expansion part protruding respectively in protruding 7 both sides (along yoke 1 axially) so that with relevant indenture 9 cooperations.Through this method, protruding 7 need not have the zone of expanding towards the far-end 7a of convexity 7.Therefore, punching press-calking compacting P can carry out under the state of engagement at the far-end 7a of convexity 7 and the diapire 8a ground very close to each other of recess 8 each other.In addition, when carrying out punching press-calking compacting P, can not produce act on protruding 7 and recess 8 on, be used for power that these parts are drawn back each other, so can the internal diameter size and the circularity of yoke 1 not had a negative impact.This makes the internal diameter size of yoke 1 and circularity can keep very high precision.
In addition, because punching press-calking compacting P locates, carrying out with indenture 9 location into face-to-face relationship in the near wall region territory on protruding 7 both sides respectively, therefore, can seamlessly match with relevant indenture 9 in the near wall region territory of protruding 7 both sides.Just, protruding 7 differential expansion part can be extend into by aligning in the relevant indenture 9.Therefore, protruding 7 and recess 8 between can not leave the gap, thereby make protruding 7 with recess 8 can be with enough intensity mechanical connections.And, the surperficial precision processing that causes need not to be used for the filling gap very close to each other between convexity 7 and recess 8, for example coating or plating etc., thus can reduce manufacturing cost.
Second embodiment
Although the example structure that has been formed with indenture 9 separately with reference to the dual-side of its center dant 8 has been introduced first embodiment,, shown in Fig. 5 A to 5C, protruding 7 also can be formed with indenture 7b at dual-side.Just, shown in Fig. 5 C, protruding 7 dual-side can be formed with the indenture 7b that inwardly concaves, and punching press-calking compacting P can locate in the near wall region territory on the both sides of recess 8, become the location that concerns face-to-face to carry out with indenture 7b.In this optional embodiment, the differential expansion in the near wall region territory on the both sides of recess 8 is partly stretched in the relevant indenture 7b of convexity 7, thereby can obtain the advantageous effects identical with first embodiment.
Introduced first embodiment although be fixedly installed in the yoke 1 example structure on week with reference to permanent magnet 3 wherein, yoke 1 of the present invention also can be used to adopt the magnetic circuit of field coil replacement permanent magnet 3.
Although introduced specific embodiment of the present invention in detail, it will be appreciated by those skilled in the art that general teachings according to specification, can carry out various modification and replacement to these details.Therefore, said ad hoc structure is just schematic, rather than limits scope of the present invention, and scope of the present invention will be limited the abundant range of following claim and all equivalents thereof.
Claims (9)
1. the yoke of an electric rotating machine comprises: cutting steel plate (6), and this cutting steel plate (6) forms rectangle; And one of which end (6a) is formed with a plurality of recesses (8), and the other end (6b) is formed with a plurality of convexities (7), and this cutting steel plate (6) volume rolls into cylindrical shape; Wherein, Insert respectively in the recess (8) protruding (7), so that the two ends of mechanical connection steel plate (6) (6a, 6b) is characterized in that:
Each recess (8) has the sidewall of opening facing to the diapire (8a) of the far-end (7a) of each convexity (7) and the axially spaced-apart that stretches out from the diapire two ends;
Each convexity (7) has sidewall, and its width is equal to or slightly less than the entrance width of each recess basically, and each protruding sidewall comprises the near wall region territory, has the dilation that compacting forms respectively; And
The sidewall of each recess (8) has the indenture (9) of mutual axially facing; The dilation that forms with the compacting with each convexity (7) matees very close to each otherly; So that the two ends of steel plate (6) (6a, 6b) is at the mutual mechanical connection that makes progress in the week of yoke; Said indenture (9) has circular arc, and is being formed in the sidewall of said recess (8) with diapire (8a) position spaced;
The dilation in the near wall region territory of the sidewall of said convexity (7) be press forming being bent to form circular arc, thereby fit in the said indenture (9).
2. the yoke of electric rotating machine according to claim 1 is characterized in that:
Said each indenture (9) is formed at the place, near wall region territory in the face of the sidewall of each convexity (7) with the axial direction of yoke (1) with aliging.
3. the yoke of an electric rotating machine comprises: cutting steel plate (6), and this cutting steel plate (6) forms rectangle; And one of which end (6a) is formed with a plurality of recesses (8), and the other end (6b) is formed with a plurality of convexities (7), and this cutting steel plate (6) volume rolls into cylindrical shape; Wherein, Insert respectively in the recess (8) protruding (7), so that the two ends of mechanical connection steel plate (6) (6a, 6b)
Each recess (8) has the sidewall of opening facing to the diapire (8a) of the far-end (7a) of each convexity (7) and the axially spaced-apart that stretches out from the diapire two ends;
Each convexity (7) has sidewall, and its width is equal to or slightly less than the entrance width of each recess basically; And
Each protruding sidewall has indenture (9A); This indenture (9A) is formed at the location in the face of the sidewall of each recess (8) with the axial direction of yoke with aliging; And the sidewall of each recess (8) has the differential expansion part, in the indenture (9A) of the partially filled sidewall to each convexity (7) of this differential expansion;
Said indenture has circular arc, and is being formed in the sidewall of said convexity (7) with the diapire position spaced;
This differential expansion partly be press forming being bent to form circular arc, thereby fit in the said indenture (9A).
4. the yoke of electric rotating machine according to claim 1 is characterized in that:
The diapire of the far-end of each convexity (7) and each recess (8) forms along the axial direction of yoke as the crow flies, and the degree of depth of the height of each convexity (7) and each recess (8) almost is equal to each other;
Thus, under each convexity (7) and situation that each recess (8) matches, the diapire of the far-end of each convexity (7) and each recess (8) along the circumferential direction of yoke (1) each other against engagement.
5. the method for the yoke (1) of a manufacturing electric rotating machine (2); This method comprises: preparation cutting steel plate (6); One end (6a) of this cutting steel plate (6) is formed with a plurality of recesses (8), and the other end (6b) is formed with a plurality of convexities (7), the sidewall that each recess (8) has diapire (8a) and the axially spaced-apart that stretches out from these diapire two ends is opened; Each convexity (7) has sidewall, and its width is equal to or slightly less than the width of the import of each recess (8) basically; It is characterized in that:
Be formed with indenture (9,9A) one of in each recess and each convexity; And cutting steel plate (6) volume rolls into cylindrical shape; Up to the import facing to each recess (8) of the distal face of each convexity (7), then, protruding (7) are inserted the inside of recess (8) respectively; Then; Very close to each otherly by mechanical connection, said indenture has circular arc through press process is carried out in another the near wall region territory in each convexity (7) and each recess (8) for protruding (7) and recess (8), and is being formed in the sidewall of said recess (8) or said convexity (7) with the diapire position spaced;
Said near wall region territory has dilation, said dilation be press forming being bent to form circular arc, thereby fit in the said indenture.
6. the method for the yoke of manufacturing electric rotating machine according to claim 5 is characterized in that:
The sidewall of each recess (8) is formed with indenture (9) respectively; This indenture is formed on the location in the face of the sidewall of each convexity (7) with the axial direction of yoke (1) with aliging; And the sidewall of each convexity (7) has the differential expansion part, in the indenture (9) of the partially filled sidewall to each recess (8) of this differential expansion.
7. the method for the yoke of manufacturing electric rotating machine according to claim 5 is characterized in that:
The sidewall of each convexity (7) is formed with indenture; This indenture is formed at the location in the face of the sidewall of each recess (8) with the axial direction of yoke (1) with aliging; And the sidewall of each recess (8) has the differential expansion part, in the partially filled indenture to each protruding sidewall of this differential expansion (9A).
8. the method for the yoke of manufacturing electric rotating machine according to claim 5 is characterized in that:
This press process is carried out under these circumstances, and promptly the diapire (8a) of the far-end of each convexity (7) and each recess (8) made progress against engagement in week, and the two ends of cutting steel plate (6) made progress each other against engagement in week.
9. the method for the yoke of manufacturing electric rotating machine according to claim 5 is characterized in that:
Carry out the punching press calking through the drift that utilizes shape to be similar to each indenture shape and carry out this connection.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005098329 | 2005-03-30 | ||
| JP2005-098329 | 2005-03-30 | ||
| JP2005098329A JP4508925B2 (en) | 2005-03-30 | 2005-03-30 | Yoke for rotating electrical machine and method for manufacturing yoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1841882A CN1841882A (en) | 2006-10-04 |
| CN1841882B true CN1841882B (en) | 2012-10-24 |
Family
ID=37026487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100710059A Expired - Fee Related CN1841882B (en) | 2005-03-30 | 2006-03-30 | Magnet yoke for rotary motor and method for manufacturing same |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7694408B2 (en) |
| JP (1) | JP4508925B2 (en) |
| KR (1) | KR100776357B1 (en) |
| CN (1) | CN1841882B (en) |
| DE (1) | DE102006012669A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010041827A (en) * | 2008-08-05 | 2010-02-18 | Nippon Densan Corp | Motor with brush |
| US20100064602A1 (en) * | 2008-09-12 | 2010-03-18 | Kirk Thomas Moore | Self-registering roof ventilation system |
| DE102009027370A1 (en) * | 2009-07-01 | 2011-01-05 | Robert Bosch Gmbh | Method for producing an electric motor |
| KR101124809B1 (en) * | 2010-05-27 | 2012-06-20 | (주)휴모테크 | Bond Structure Of Ultra Slim Spindle motor |
| KR20120017872A (en) * | 2010-08-20 | 2012-02-29 | 삼성전자주식회사 | Motor usable with washing machine and washing machine having the same |
| DE102011007660A1 (en) * | 2011-04-19 | 2012-10-25 | Hilti Aktiengesellschaft | Hand tool and manufacturing process |
| DE102011085985A1 (en) * | 2011-11-09 | 2013-05-16 | Robert Bosch Gmbh | Electric motor assembly |
| CN102810915A (en) * | 2012-08-31 | 2012-12-05 | 中电电机股份有限公司 | Magnet yoke for large-middle-sized direct-current motor and machining method thereof |
| JP6915391B2 (en) | 2016-08-30 | 2021-08-04 | 株式会社デンソー | Stator and its manufacturing method |
| JP6762549B1 (en) * | 2019-12-03 | 2020-09-30 | 株式会社Ｔｏｋｕｄａ−Ａｒｄ | How to make an injection needle |
| CN113937969A (en) * | 2021-09-29 | 2022-01-14 | 台州中动科技有限公司 | Motor casing's seam pressing equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6804874B2 (en) * | 2000-09-12 | 2004-10-19 | Denso Corporation | Method of manufacturing yoke of rotary electric machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2810215C3 (en) * | 1978-03-09 | 1993-12-02 | Bosch Gmbh Robert | Method for applying an additional inference to the housing of an electrical machine |
| JPH0669280B2 (en) * | 1986-03-05 | 1994-08-31 | 株式会社三ツ葉電機製作所 | Motor yoke manufacturing method |
| JPS6460247A (en) * | 1987-08-28 | 1989-03-07 | Hitachi Ltd | Manufacture of yoke for motor |
| DE3923974A1 (en) * | 1989-07-20 | 1991-01-31 | Swf Auto Electric Gmbh | METHOD FOR PRODUCING AN ELECTRIC MOTOR |
| FR2666461B1 (en) * | 1990-08-31 | 1999-04-16 | Jidosha Denki Kogyo Kk | SMALL DIMENSIONS ELECTRIC MOTOR ENCLOSURE STRUCTURE |
| US5942827A (en) * | 1997-04-03 | 1999-08-24 | Interelectric Ag | Electric motor |
| CN2403168Y (en) | 1999-06-30 | 2000-10-25 | 北京大东电器有限公司 | Motor |
| JP3675320B2 (en) * | 2000-09-12 | 2005-07-27 | 株式会社デンソー | Yoke manufacturing method |
| JP2002085224A (en) | 2000-09-19 | 2002-03-26 | Nichiei:Kk | Photostand |
| US6903475B2 (en) * | 2001-02-23 | 2005-06-07 | Black & Decker Inc. | Stator assembly with an overmolding that secures magnets to a flux ring and the flux ring to a stator housing |
| KR20040092950A (en) * | 2003-04-30 | 2004-11-04 | 발레오전장시스템스코리아 주식회사 | Rolling yoke that is made by rolling yoke manufacture method of starter motor and the method for vehicles |
-
2005
- 2005-03-30 JP JP2005098329A patent/JP4508925B2/en not_active Expired - Fee Related
-
2006
- 2006-02-28 US US11/363,064 patent/US7694408B2/en not_active Expired - Fee Related
- 2006-03-20 DE DE102006012669A patent/DE102006012669A1/en not_active Ceased
- 2006-03-28 KR KR1020060028109A patent/KR100776357B1/en not_active IP Right Cessation
- 2006-03-30 CN CN2006100710059A patent/CN1841882B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6804874B2 (en) * | 2000-09-12 | 2004-10-19 | Denso Corporation | Method of manufacturing yoke of rotary electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1841882A (en) | 2006-10-04 |
| US20070028546A1 (en) | 2007-02-08 |
| KR100776357B1 (en) | 2007-11-15 |
| JP4508925B2 (en) | 2010-07-21 |
| US7694408B2 (en) | 2010-04-13 |
| JP2006280146A (en) | 2006-10-12 |
| DE102006012669A1 (en) | 2006-10-12 |
| KR20060106725A (en) | 2006-10-12 |
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